I own a ZD 331 and it is IMO the best built mower you can buy. I studied every commercial mower sold in my area and the strength of the Kubota was unmatched. A lot will disagree i'm sure but I have been so satisified with mine I will be buying another soon. I give $11,600 for mine a year ago, which is a very good price compared to all the other deisels I had researched.
Good luck with whatever you deside but if you do buy a Kubota I just can't believe you will be disapointed.

yeah, we have three of those and love them, we had many of the old ones and there was some problems, but these new ones are the cats roar!!lol. they cut and ride great with lots of power, you will be impressed

all is fair in love and grass! Man, it smells like sheet, do you smell that!!

Demoed the machine last summer. Good power plant - but that is in other mowers such as toro, hopper, not sure about exmark. I run toro gas, but I like the feel of the toro better vs the kubota. Price - I know, at least in my area, kubota will smoke anyone on financing and very competitive on price. Either way - you'll have a great machine.